(no, it isn't this) My bold fonts are completely deformed in some sites (mostly SE) in chromium. I have had this issue for a while on two Arch systems, but not in Ubuntu. Here is an example from a question I was viewing (getting carried away again ...):

As you can see, some letters are bigger than others, and it generally looks a mess. I tried messing with the chromium fonts, but it seems the problematic SE sites have their own fonts they want, which overrides chromium's settings.

What is going wrong? Is this some kind of extreme hinting that totally malforms the letters? Or is there something I ought to install?

Come to think of it, what font is it? The only fitting fonts I have installed are Helvatica (Neue) and Nimbus Sans.